Evaluation of Metal–Organic Framework-Based Adsorbents for Preconcentration of Pesticides from Water Samples

Metal-organic frameworks (MOFs) are porous crystalline materials composed of metal ions and organic ligands.By varying the combinations of metal centers and ligands, their structural properties, adsorption performance, and stability in aqueous environments can be tuned.Owing to these characteristics, MOFs have attracted attention as promising materials for environmental analysis and separation technologies.In this study, several MOFs with different metal ions and ligands were synthesized and evaluated for their adsorption performance for bensulfuron-methyl, a sulfonylurea herbicide.Among the tested MOFs, MIL-53(Al) exhibited the highest recovery.The results indicate that adsorption performance depends on the combination of metal ions and organic ligands.